I use Ext Designer 1.2.2 to generate a window including a grid. Now I want to apply filtersFeature to the the grid. How should I do? The difficult is that, we can't get the grid before callParent in the initcomponent method. So I hava some tests with some events such as render, beforerender ect on the window. But it's too late bacause the grid view has been generated. Should I immediatly modify the prototype? Can any body give some advise?